The night vision gadget is for the sniper I remember a mission in the story
where you used a sniper and trevor tells you to change to night vision to
find the o’neil brothers in the forest that we be cool to have. ﻿

Guys, night vision gadget is what use used in this one single player
mission where you can spot Bigfoot. It’s really like a thermal scope but
it’s really useful. Like this comment if you agree and for him to see.﻿